Vehicle steering device.



No. 890,473. PATENTED JUNE 9, 1908. B. J. VRAALSTAD.

VEHICLE STEERING DEVICE.

APPLI'OATION rum) APR. 19, 1907 Ill #1 fil 3 Mug" for l M was:

aralJ MzM' EDwARn I. vmALsrAn, or BUFFALO, NEW'YORK.

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To all whoia it may concern:

Be a known that I, Ems.) J. vit e.-

. sTAD, of Buffalo, in the county of Erie and State of New 'York, have invented certain new and useful Improvements in Vehicle Steenn Devices; and I'do hereby declare the fo owing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it as the hottom'of the lower nut.

ap pertains to make and use the same.

he pr mary ob'ect of this invention is to provide a motor ve icle steering device which 1 will be compact, dust-proof, and self-oiling. The inventionwill be hereinafter fully set forth and particularly pointed out in the claims;

In the accompanyin drawings, Figure 1 is a. vertical longitu mal sectional view.

Figs. 2 and 3 are cross sectional views on lines 2-2, and 33, respectively, Fig. 1. Flgs. 4 and 5 are exterior views of the two coggprating members.

e present im rovements embody, in a modified form, t e characteristics of the steering device embraced by my application for Letters Patent filed Ma 29, 1906, Serial Number 319367, in that t e steerin rod 1 is equipped with rightand lefthan screw threads 2 and 3 whereon work correspondin nuts 4 and 5. In the present instance eac 1 of the nuts is in the form of an interiorly-'- threaded member or chamber, both being 0 en at their opposite ends and closed at t eir outer ends. The lower nut is telescoped by and serves as a guide for the upper nut, and is formed with a central bore 6 to accommodate an extension. 7 of the steerin 7 rod, such extension projecting beyond threaii 3 and fitting snug within said bore. This nut at its lower end has spaced a nut cars 8 which are pivotally secured by a olt 9 to a forked bracket 10 secured to the vehicle frame (not shown). The diameter of the lower portion of nut 4 is greater than that of nut- 5, which latter it telescopes, and is formed with a lon itudinal recess to take in a spline 12 of the ower nut. One or more bores 13 ma extend longitudinally through the threade portion of the steering rod so as to establish communication between the upper and lower ends of the two chambered nuts. ()il supplied to the top of the upper nut will find its way through. openin 13 into W hen the steering rod is turned, to draw the nuts closer together, the lower nut will act as apump- Specification of amina- Application filed April 19, 1967. some 1%.868381.

I t Patented June Q, 1908.

barrel, the steeringhr or piston to force t e oil through opening 13 to. the top of the lfglllpel' nut.- the parts willbe se ubricated, and by, reason of. the tight fit between the telesco ing od' serving as a plunger In this way portions of the chambered nuts thewor -'ng parts will be kept free from dust.

- I have shown theswing ing member 14 as pivotall mounted on bo t 9, and its upper ree en as connected b a link 15 to an ear of the lower portion 0 nut 4. It will be understood, as pointed out in my before noted ap lication for atent, that the swinging mem er is-suitab connected to one o the steering wheels of t e vehicle.

I have herein. designated the two cooperpossesses the characteristic appearance of an ordinary nut. Each is inthe form of aninteriorly threaded chamber, but my invention is not restricted in that respect. The advantages sought may be obtained by any means .which embodies two cooperative'members,

the relative positions of which i may be changed by the turning of the steering rod,

and which members aslde from effecting the actuation of the lever or swinging member ating parts 4 and 5 as nuts, although neither connected to one of the steering wheels, serve to protect the working parts from dust, and at the same time constltute an oil reservoir.

I claim as my invention:

1. In a steering-gear for vehicles, the combination with a steering rod, and a duplex male screw-thread thereon, of two interiorly-' threaded nuts, one for' each thread, one nut being tclescoped by an extension of the other nut, and a swinging member actuated by said nuts. I

2. In a steering-gear for vehicles, the combination with a steering rod, and a duplex screw-thread thereon, of two nuts, 'one for each thread, a fixed sulpport for one nut, the Y other nut telescopin e latter, and a swinging member aetuater by said nuts.

; 3. In a steering-gear for vehicles, the combination with a steering rod, and a duplex screw-thread controlled thereby, of two nuts,

onefor each thread, one nut bemgtelescoped by the other, means for guiding t e telescoping sections, a swinging member pivotaly secured to one of said nuts, and a link 'pivotally secured to said swinging member and to the ollwrol' said nuts.

4. in a steering-gear for vehicles, the combination with afsteering rod, and a duplex screwthread thereon, of two interioriythreaded chambered members forming nuts, one of said members telescopin the other, and both'having oil-containing 'c ambers at their outer ends, and an oil passage through which oil may be forced from one chamber to the other by the action of said steerin rod.

5. In a steering gear for vehicles, t e com- -bination with a steering rod, and a duplex 6. In a steering-gear for vehicles, the cornv bination with a steering ro'd having-j a duplex screw-thread thereon and an end extension,

of 11 per and lower, interiorly threaded, charneied members enga g said thread, one member telescoping t e other, a [fixed support for the lower membjer which latter is formed with a here to accommodate said end extension, an oil passage bein formed between said bore and the top of t e upper nut, 25 a swim ing member mounted on said support, I and a ink connecting said swinging member to said upper member.

In testimony whereof, I have-signed this specification in the presence of'two'subBcribe- 30' lngwitnesses.

EDWARD J.

Witnesses:

VJ. Nora McGILL,

FRANCIS .SrMAGUfRE.

VRKALSTAD. 

